exists and is an alternate of . Since this is regarding statistics I assume you mean lower case sigma (Ï) which, in statistics, is the symbol used for standard deviation, and Ï2 is known as the variance.
The Acceptable Quality Limit, commonly referred to as AQL, is a method widely used to measure a production order sample to find whether or not the entire product order has met the client's specifications. The customer then has the data to make an informed decision to accept or reject the lot.
Sampling is a procedure, where in a fraction of the data is taken from a large. set of data, and the inference drawn from the sample is extended to whole group. [Raj, p4] The surveyorâs (a. person or a establishment in charge of collecting and recording data) or researchers initial task is to formulate a.